DESIGN INTENT DOCUMENT - INVESTMENT PROPOSAL STAGE 3 (DID) - Jordanthorpe 275kV SFCL Trial Project

Oct 23, 2026

Upload by Cart

Investment proposal Stage 3 (DID) design intent document for the Jordanthorpe 275kV SFCL trial project. Defines the preparation arrangements, investment and DID issue references, and the document freeze framework. Lists the design team roles, named engineering contacts, and authorisation expiry dates. Provides an itemized scope of work for installing a Superconducting Fault Current Limiter at Jordanthorpe 275/33kV substation, including equipment and substation context, and outlines related documentation and drawings status at DID approval.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages30

Reading Time1 h 16 min

AccessFree to download

Design Team list

Related documentation and drawings status

Scope of work

Substation HV equipment

Protection, control & telecommunications

Civil, structural and building engineering

Overhead line

HV cables

SDS

CDS

Procedural requirements

DID Freeze Agreement

DESIGN INTENT DOCUMENT – INVESTMENT PROPOSAL STAGE 3 (DID) [The preparation of this document is arranged by the Lead Design Engineer (Verification)] | Investment N􀁱 | 31721 | | --- | --- | | Project Title | Jordanthorpe 275kV SFCL – Trial Project | | DID ISSUE N􀁱 | 5116450/03/001_3 | | --- | --- | | DATE | 26/04/13 | CONTENTS 1. Design Team list 2. Related documentation and drawings status 3. Scope of work 4. Substation HV equipment 5. Protection, control & telecommunications 6. Civil, structural and building engineering 7. Overhead line 8. HV cables 9. SDS 10. CDS 11. Procedural requirements DID Freeze Agreement | Role | Name | Date | | --- | --- | --- | | Lead Design Engineer (Verification)(CDU) | John Isaac | | | Lead Design Engineer (Assurance) | Gary O’Neill | | 1. DESIGN TEAM Design Engineers (Verification) | | Name & Email Address | Telephone N􀁱 | Mobile N􀁱 | Date of Expiry of Authorisation | | --- | --- | --- | --- | --- | | Lead Design Engineer (Verification) | John Isaac
[John.Isaac@atkinsglobal.com](John.Isaac@atkinsglobal.com) | 01133066344 | 07803261362 | 31/03/2016 | | P&C Design | John Isaac
[John.Isaac@atkinsglobal.com](John.Isaac@atkinsglobal.com) | 01133066344 | 07803261362 | 31/03/2016 | | Substation
HV Design | John McGrath
[John.McGrath120@btopenworld.com](John.McGrath120@btopenworld.com) | 01765600620 | 07785230452 | 31/05/2013 | | Substation
Civil Design | Neil Robertson
[Neil.Robertson@atkinsglobal.com](Neil.Robertson@atkinsglobal.com) | 01785825036 | 07803260830 | 30/04/2015 | | OHL Design | N/A | | | | | HV Cable Design | N/A | | | | Other Design Engineers that are involved in the Project (but not TP141 Authorised) | Discipline | Name & Email Address | Telephone N􀁱 | Mobile N􀁱 | Date of Expiry of
Authorisation | | --- | --- | --- | --- | --- | | Lead Design Engineer | Pawel Dziedzic
[Pawel.Dziedzic@atkinsglobal.com](Pawel.Dziedzic@atkinsglobal.com) | 01133066048 | |
N/A | | | Name & Email Address | Telephone N􀁱 | Mobile N􀁱 | Date of Expiry of
Authorisation | | --- | --- | --- | --- | --- | | Lead Design Engineer (Assurance) | Gary O’Neill
Gary.O'[Neill@nationalgrid.com](Neill@nationalgrid.com) | | 07768965964 | 31/03/2013 | | P&C Design | Gary O’Neill
Gary.O'[Neill@nationalgrid.com](Neill@nationalgrid.com) | | 07768965964 | 31/03/2013 | | Substation HV Design | Peter Holliday
[Peter.holliday@nationalgrid.com](Peter.holliday@nationalgrid.com) | | 07768 554648 | TBA | | Substation
Civil Design | Rob Everitt
[Robert.everitt@nationalgrid.com](Robert.everitt@nationalgrid.com) | | 07428 115861 | TBA | | OHL Design | | | | | | HV Cable Design | | | | | Design Engineers (Assurance) Maintenance Delivery Electricity | | Name & Email Address | Telephone N􀁱 | Mobile N􀁱 | Date of Expiry of
Authorisation | | --- | --- | --- | --- | --- | | Delivery Manager Representative | Brian Lenton
[Brian.Lenton@nationalgrid.com](Brian.Lenton@nationalgrid.com) | | 07769725392 |
N/A | Electrical Network Investment | | Name & Email Address | Telephone N􀁱 | Mobile N􀁱 | Date of Expiry of
Authorisation | | --- | --- | --- | --- | --- | | Investment Sponsor | Barry Reeves
[Barry.Reeves@nationalgrid.com](Barry.Reeves@nationalgrid.com) | | 07760170929 |
N/A | 2. RELATED DOCUMENTATION AND DRAWINGS (Status at time of DID approval) | Documentation Title | Issue N􀁱 | Rev Date | | --- | --- | --- | | 1. Design Justification Report | N/A (See Northern Powergrid Scope) | | | 2. Single Line Diagram | B | | | 3. CDS | N/A | | | 4. Key diagram | B | | | 5. Site Phasing Diagram (where required) | N/A | | | 6. Grid Code technical appendices
(a) F1
(b) F2
(c) F3
(d) F4 | TBA | | | 7. Stage by stage drawings
(a) F1
(b) F2
(c) F3 | N/A | | | 8. Condition Assessment reports | N/A | | | 9. Geotechnical Assessment reports | N/A | | | Documentation Title | Issue N􀁱 | Rev Da

FAQs

What is the purpose of the DID Stage 3 design intent document?

It records the design intent for the investment proposal Stage 3 (DID) and sets the framework for DID freeze, including responsibilities, documentation status, and scope of work.

Where and what equipment will be installed for the project?

A Superconducting Fault Current Limiter (SFCL) will be installed at the Jordanthorpe 275/33kV substation at the LV side of the transformer circuit of SGT1.

How long will the SFCL trial run before removal?

The SFCL is installed for an initial trial period of three years, after which it will be removed.

Oct 23, 2026

Upload by Cart